Home / 520,061.24-779,937.30-220,537.40

Finding the Fourth Proportional to 520,061.24, 779,937.30 and 220,537.40

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Solution

The fourth proportional to 520,061.24, 779,937.30 and 220,537.40 is: 330,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,061.24 : 779,937.30 = 220,537.40 : x
  2. Step 2: Convert to fraction form
    520,061.24/779,937.30 = 220,537.40/x
  3. Step 3: Cross multiply
    520,061.24x = 779,937.30 × 220,537.40
  4. Step 4: Simplify right side
    520,061.24x = 172,005,344,305.02
  5. Step 5: Solve for x
    x = 172,005,344,305.02/520,061.24
  6. Step 6: Final answer
    x = 330,740.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.